Grille of a truck vehicle



FIG. 1 is a left, front perspective view of a grille of a vehicle truck showing my new design; it may be understood that the broken lines on all figures are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a right side view of the invention shown in FIG. 1;

FIG. 3 is a left side view of the invention shown in FIG. 1;

FIG. 4 is a front view of the invention shown in FIG. 1; and,

FIG. 5 is a top view of the invention shown in FIG. 1. 

The ornamental design for a grille of a truck vehicle, as shown and described. 